Aberdeen Folk Club, since 1972, and I probably can't remember them all :

Highland Hotel, Dee Street
Aberdeen Trades Council Hall, the Adelphi
pub in Little Belmont Street - can't remember the name but but no longer exists
Aberdeen Art Gallery [ briefly ]
Ma Cameron's
Crescent Hotel, Bon Accord Crescent
The Cooperage, Cooper's Bar
The Lemon Tree Arts Centre
2 pubs in the Castlegate - can't remember the names
O'Donohughe's
The Blue Lamp

That makes 12, but there were probably more before 1972. The club was certainly in the Royal Hotel in 1967, which makes 13 that I know of.